Including Optical Means Patents (Class 345/697)
-
Patent number: 8581942Abstract: A backlight unit for a liquid crystal display device includes a reflection plate, a light guide plate over the reflection plate, the light guide plate having n grooves at a lower surface and including (n+1) areas divided by the grooves, wherein n is a natural number, a first LED assembly disposed at a first side surface of the light guide plate, the first LED assembly including (n+1) LED packages, each of which has at least one LED, wherein the LED packages of the first LED assembly correspond to the areas, respectively, and are separately driven, and a plurality of optical sheets over the light guide plate.Type: GrantFiled: December 9, 2009Date of Patent: November 12, 2013Assignee: LG Display Co., Ltd.Inventors: Ja-Young Pyun, Hyun-Ho Shin, Kyu-Bong Jung
-
Publication number: 20130257928Abstract: An image display apparatus and a method for operating the same are disclosed. The image display apparatus includes a display for displaying multi-viewpoint images, a lens unit disposed in front of the display, for separating the multi-viewpoint images according to directions, and a controller for, if at least a part of viewpoint images perceived to the left and right eyes of a first viewer are overlapped between the left and right eyes of the first viewer, controlling processing of at least a part of the overlapped viewpoint images as black.Type: ApplicationFiled: January 15, 2013Publication date: October 3, 2013Inventor: Yonguk LEE
-
Patent number: 8547297Abstract: In an exemplary embodiment, the color resolution of a first image display screen is increased by assembling the first display screen with a second image display screen in an overlaid manner. Transmissive color filter elements are provided associated with addressable sub-pixels of the display screens. A first set of sub-pixels of the first screen and a second set of sub-pixels of the second screen are cooperatively addressed to display an image pixel of the display assembly, where the first set of sub-pixels addressed is spatially offset from the second set of sub-pixels addressed along the planar surfaces of the display screens. The exemplary display assembly formed by the display screens thereby enables the use of more than three colors to define a broadened color space relative to that defined by the display screens separately.Type: GrantFiled: July 3, 2012Date of Patent: October 1, 2013Assignee: 3-D Virtual Lens Technologies, LLCInventors: Reuben Hoppenstein, Eric Rosenthal
-
Publication number: 20130235096Abstract: A hand-held electronic device and a display method are described. The hand-held electronic device of the invention includes an image processing unit configured to provide a first image; a first display unit configured to display the first image; a first optical system configured to receive light emitted from the first display unit and conduct a light path conversion on it to form a first magnified virtual image, wherein a length of a light path between the first optical system and the first display unit is less than a focal distance of first optical system; and a first window disposed on a first external surface of the hand-held electronic device to allow a viewer to watch the first magnified virtual image through the first optical system when the viewer is close to the first external surface.Type: ApplicationFiled: March 12, 2013Publication date: September 12, 2013Applicant: Lenovo (Beijing) Co., Ltd.Inventor: Junfeng Liu
-
Publication number: 20130235097Abstract: A stereoscopic display device includes: a parallax barrier in which light transmission parts that transmit light and light shielding parts that block light are formed alternately, and a display panel that displays a stereoscopic image. A plurality of pixels for displaying the stereoscopic image are formed on the display panel. Each pixel includes a plurality of color forming subpixels that contribute to the color formation of the stereoscopic image, and a contrasting subpixel that contributes to the contrast of the stereoscopic image. In each pixel, the contrasting subpixel is positioned at both ends of the pixel in a direction in which the light transmission parts and the light shielding parts are arranged alternately. In each pixel that overlaps the light shielding part when the display panel is viewed from front, the contrasting subpixel is positioned at both ends of the light shielding part.Type: ApplicationFiled: November 17, 2011Publication date: September 12, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Makoto Eguchi, Shinya Yamasaki, Akira Imai, Tomoo Takatani
-
Publication number: 20130229449Abstract: A three-dimensional display device comprises a flat display panel and an image-converting sheet disposed on or above the display panel. The display panel comprises a matrix of unit display cells arranged as rows and columns and where the cells are spaced apart to have respective row and column direction pitches. The image-converting sheet comprises a plurality of inclined lenticular lenses where the inclination is set according to the row and column direction pitches so as to reduce perception of Moiré patterns when stereo-scopic images are projected through the image-converting sheet to an observer viewing the display panel as an upright panel having respectively different left and right stereo-scopic image projections.Type: ApplicationFiled: April 15, 2013Publication date: September 5, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Hae-Young YUN, Hee-Seop KIM, Kyoung-Ho JUNG, Seung-Hoon LEE, Hwi KIM, Jung-Hwan YI
-
Publication number: 20130229448Abstract: A display device for displaying stereoscopic images is provided, wherein partial stereoscopic images are generated in spectral ranges at least partially different from each other, and wherein narrow-band emitting emission elements are present for generating images, and wherein different emission elements are present for generating spectrally narrow-band optical radiation in different spectral ranges, of which at least one comprises a light-converting material excited by an excitation element for emitting optical radiation.Type: ApplicationFiled: January 22, 2013Publication date: September 5, 2013Applicant: INFITEC GMBHInventors: Arnold SIMON, Helmut JORKE
-
Publication number: 20130222308Abstract: An electronic device and an operation mode switching method thereof are described. The operation mode switching method is applied to an electronic device that includes a display unit, and the electronic device has a first operation mode and a second operation mode. The display unit has a first light-transmittance in the first operation mode and a second light-transmittance in the second operation mode such that the first high light-transmittance is higher than the second light-transmittance. The method includes detecting to obtain a trigger event; judging whether or not the trigger event satisfies a predefined condition to get a judgment result and, when the judgment result indicates that the trigger event satisfies the predefined condition, generating a switching instruction, and according to the switching instruction, switching the electronic device between the first operation mode and the second operation mode.Type: ApplicationFiled: February 28, 2013Publication date: August 29, 2013Applicant: Lenovo (Beijing) Co., Ltd.Inventor: Lenovo (Beijing) Co., Ltd.
-
Publication number: 20130222443Abstract: A technique for modulating light by an optically addressed, electric charge accumulating spatial light modulator achieves substantially monotonic gray scale response. Embodiments digitally modulate the voltage across a photoreceptive material included in the spatial light modulator. The digital modulation scheme entails illuminating the photoreceptor with a series of light pulses propagating from an LCoS, in which the durations of the light pulses and their positions in time combine to produce binary-weighted equivalent rms voltages on the photoreceptor. The light pulses originate from a light-emitting diode or other switchable light source, and the timing of the light pulses is controlled such that they are emitted only when the associated LCoS is in a stable state. Emitting light pulses while the LCoS is in a stable state avoids non-monotonic behavior.Type: ApplicationFiled: March 25, 2013Publication date: August 29, 2013Inventors: Howard V. Goetz, James L. Sanford, Jonathan A. Sachs
-
Publication number: 20130194323Abstract: Provided is a micro-lens capable of changing a focal length. The micro-lens includes a plurality of electrodes, and an electrowetting liquid layer that is separable from the electrodes and that has a focal length that is controlled by a voltage applied to the electrodes.Type: ApplicationFiled: November 30, 2012Publication date: August 1, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Samsung Electronics Co., Ltd.
-
Patent number: 8497888Abstract: An image display device which can change an image size without the image deterioration and can suppress the large-sizing of the image display device is provided. The image display device includes an optical flux generator which is configured to generate and radiate an optical flux in response to an image signal read out for every dot clock, and an optical scanning part which is configured to display an image by scanning the optical flux two-dimensionally. By changing timing at which the optical flux is radiated from the optical flux generator, a size of an image to be displayed is changed. The change of the timing at which the optical flux is radiated from the optical flux generator is performed by changing a period of the dot clock.Type: GrantFiled: August 6, 2009Date of Patent: July 30, 2013Assignee: Brother Kogyo Kabushiki KaishaInventor: Mitsugi Tanaka
-
Publication number: 20130187961Abstract: A device may determine a first distance between a viewer and a display of a device. The display may include a first parallax barrier including a plurality of parallax barrier clusters. Each of the parallax barrier clusters includes a plurality of parallax barrier elements that are parallel to one another and parallel to the parallax barrier clusters. The device may also determine a second distance between a right eye of the viewer and a left eye of the viewer, and move parallax barrier elements to control spacing between the parallax barrier clusters based on the first distance and the second distance. Furthermore, the device may send, from the display, light rays of a right-eye image of a stereoscopic image and a left-eye image of the stereoscopic image to a right eye of the viewer and a left eye of the viewer, respectively, through the spacing between the parallax barrier clusters.Type: ApplicationFiled: May 13, 2011Publication date: July 25, 2013Applicant: SONY ERICSSON MOBILE COMMUNICATIONS ABInventor: Alexander Hunt
-
Patent number: 8482584Abstract: A 3-D image display including an image forming unit for forming an image by modulating light according to image information is provided. The 3-D image display includes a display device with a plurality of first regions for forming a left eye image and a plurality of second regions for forming a right eye image in a 3-D image mode. The 3-D image display also includes a viewpoint controller with first and second reflection mirror devices for reflecting light of a left eye image and light of a right eye image input from the image forming unit to first and second viewpoints when displaying a 3-D image. The locations of the first and second viewpoints may be changed by controlling an angle of reflection surfaces of the first and second reflection mirror devices.Type: GrantFiled: June 22, 2011Date of Patent: July 9, 2013Assignee: Samsung Electronics Co., Ltd.Inventor: Yun-woo Nam
-
Patent number: 8482508Abstract: A LCD display device includes a LCD panel including a plurality of LCD units with trapezoid structure, and three sides of the LCD unit all include three liquid crystal molecules (LCM), the LCMs of all of the first side of the LCD unit constitute a first LCM array and form a first display interface, the LCMs of all of the second side constitute a second LCM array and form a second display interface, and the LCMs of all of the third side constitute a third LCM array and form a third display interface. The LCD display device also includes three signal conversion modules configured to convert three display signals into three control signals respectively, and three driving modules configured to drive the three LCM arrays according to the control signals and cause the first, the second, and the third display interface to display corresponding images.Type: GrantFiled: October 25, 2009Date of Patent: July 9, 2013Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Shih-Fang Wong, Xin Lu, Yu-Cui Zhou
-
Publication number: 20130169707Abstract: An imaging lens arrangement and method have been described for use with an imaging projector system including a display. A plurality of no more than four lenses can be arranged to receive an object image that emits from the display to propagate through the plurality of lenses to produce a high-resolution projected image from the object image. The imaging projector system has compact configuration, low height profile and provides high performance.Type: ApplicationFiled: December 30, 2011Publication date: July 4, 2013Inventors: Lin Li, Bradley Sissom, Kirk Cook
-
Publication number: 20130169706Abstract: A testing system and method are described for use in testing a sequential display having a liquid crystal microdisplay panel. A channel is used for displaying a test image while a parameter of the panel is measured and another channel is used for compensating for DC errors introduced by the test image into the microdisplay panel.Type: ApplicationFiled: December 28, 2011Publication date: July 4, 2013Inventors: Adam W. Harant, Brion Koprowski, Eric S. Marcum
-
Publication number: 20130169529Abstract: A device may include sensors, a display, an optical guide, and one or more processors. The sensors may obtaining tracking information associated with a user. The display may include pixels for displaying images. The optical guide may include optical elements, each of the optical elements directing light rays from one or more of the pixels. In addition, the one or more processors may be configured determine a relative location of the user based on the tracking information obtained by the sensors, obtain values for control variables that are associated with the optical elements based on the relative location of the user, display a stereoscopic image via the display, and control the optical elements based on the values to direct the stereoscopic image to the relative location and to prevent a pseudo-stereoscopic image from forming at the relative location.Type: ApplicationFiled: March 23, 2011Publication date: July 4, 2013Applicant: SONY ERICSSON MOBILE COMMUNICATIONS ABInventor: Martin Ek
-
Publication number: 20130147865Abstract: A single-projection widescreen projecting device includes an image processing system and in turns in the direction of light path an optical non-imaging system providing a light source; an optical imaging system; a light path switching system; and a projecting lens which projects a magnified image onto a screen. The image processing system connects the optical imaging system to the light path switching system and is used to divide the image into N frames of small images and then transmit the small images to the optical imaging system. N is natural numeral greater than 1. At the moment of transmitting the small images to the optical imaging system, a corner signal corresponding to each frame of the small images is transmitted the light path switching system. The optical imaging system is used to receive N frames of the small images and light rays from the optical non-imaging system and then display the N frames of the small images after the light rays of the optical non-imaging system are adjusted.Type: ApplicationFiled: January 20, 2011Publication date: June 13, 2013Applicant: FUJIAN NETCOM TECHNOLOGY CO., LTD.Inventors: Qixiong Chen, Shunda Shao, Rong Zhang
-
Publication number: 20130141482Abstract: A display has a spatial light modulator for dynamically controlling a luminance of each pixel according to an input signal, the spatial light modulator having a non-uniform spatial characteristic, the display also having an optical filter having a spatial pattern to alter the luminance to compensate at least partially for the non-uniform spatial characteristic. An electronic signal processing element applies some pre ompensation predominantly of higher spatial frequencies for the non-uniform spatial characteristic. Such dynamic and optical compensation can enable tuning for different optimizations or for compensating for variations over time. A backlight has an optical source and an optical filter, the source having a color output which has a non-uniform spatial characteristic, and the optical filter having a spatial pattern to alter the color to compensate in part at least for the non-uniform spatial characteristic.Type: ApplicationFiled: December 31, 2012Publication date: June 6, 2013Applicant: BARCO NVInventor: BARCO NV
-
Patent number: 8456395Abstract: A panel adjustment method is executed on a host to adjust settings of a panel connected to the host through a serial bus. The method determines whether the panel is supported by the host. When the panel is supported by the host, the settings of the panel is read from a database of the host to accordingly set the panel. It is further determined whether the panel is correctly set or not. When the panel is correctly set, it is further determined whether the panel is of a frame buffer mode or not. When the panel is of a frame buffer mode, it is determined whether a header file generation is required or not. When the header file generation is required, the settings and a panel name are included in an include file. The include file is compiled to thereby generate a binary file which is loaded into the panel.Type: GrantFiled: November 21, 2008Date of Patent: June 4, 2013Assignee: Sunplus Technology Co., Ltd.Inventor: Tsung-I Liu
-
Publication number: 20130127935Abstract: A compact arrangement of 3D filters is provided by a light source such as an LED and a spectral filter positioned to divide light from the light source into first and second lights having first and second spectral properties. A plurality of the compact sources may be arranged to illuminate (e.g., backlight) a modulator of a display (e.g., an LCD display). The modulator may be configured such that one region is illuminated by the first light and another region is illuminated by the second light (un modulated buffer between regions may be utilized to prevent crosstalk between the regions). The first and second lights are then modulated, for example, according to first and second channels of a 3D display.Type: ApplicationFiled: January 18, 2011Publication date: May 23, 2013Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Chun Chi Wan, Henry Ip
-
Patent number: 8405607Abstract: A sensor for an optical device includes an array of pixels in rows and columns which detect and process illumination falling thereon so as to identify inputs generated by a user on a surface of the optical device. A second reset period of variable length between a black calibration phase and an integration phase occurs in a processing cycle of a frame for each pixel, wherein the length of the second reset period is adjusted based on the ambient light conditions.Type: GrantFiled: March 28, 2011Date of Patent: March 26, 2013Assignee: STMicroelectronics (Research & Development) LimitedInventor: Jeffrey Raynor
-
Publication number: 20130044147Abstract: A three-dimensional image display apparatus includes a backlight unit including light emitting blocks driven independently of each other, a display panel which emits first light including a first image information using a first image data during an N-th frame period and emits second light including a second image information using a second image data during an (N+1)-th frame period, where N is a natural number; and an active retarder including polarizing blocks sequentially scanned along a first direction, where the active retarder converts the first light into first polarized light during the N-th frame period and converts the second light into second polarized light during the (N+1)-th frame period, and where the light emitting blocks are sequentially turned off in a unit of at least one light emitting block in each of the N-th and (N+1)-th frame periods along a scanning direction of the polarizing blocks.Type: ApplicationFiled: April 9, 2012Publication date: February 21, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang-Jae KIM, Kwang-Hyun KIM, Ji-Hoon KIM, Seungbeom PARK, Beong-hun BEON, Seunghee LEE
-
Publication number: 20130038646Abstract: A dimmer includes a pair of pivoting sections provided across an optical axis of a light beam and having pivot axes and a pair of light blocking sections held by the pair of pivoting sections and configured to pivot following pivoting of the pivoting sections to block the light beam. In a maximum light blocking state, positions in the optical axis direction of opposed ends on the optical axis side of the pair of light blocking sections are different from each other. In the maximum light blocking state, the opposed ends on the optical axis side of the pair of light blocking sections are arranged to overlap each other in a direction along the optical axis.Type: ApplicationFiled: August 7, 2012Publication date: February 14, 2013Applicant: SEIKO EPSON CORPORATIONInventors: Kenshi SAKAI, Toshihiko NAGUMO, Toshihiko SAKAI, Nobuyuki OTSUKI, Takuro ONOTA
-
Patent number: 8368677Abstract: An optical sensor device includes a plurality of optical sensor units two-dimensionally arranged, a scan driver, and a detection driver. The scan driver sets optical sensor units, in each row, in a selected state. The detection driver acquires detection signals corresponding to illuminance of incident light on the optical sensor units. Each of the optical sensor units comprises a first optical sensor including a first photoelectric conversion section blocked from light and a second optical sensor including a second photoelectric conversion section configured to change the illuminance in response to an externally applied external force. The detection driver maintains each voltage of electrodes of the first optical sensors and each voltage of electrodes of the second optical sensors in equal voltage levels to each other, and acquires a plurality of voltage signals in parallel.Type: GrantFiled: March 30, 2011Date of Patent: February 5, 2013Assignee: Casio Computer Co., Ltd.Inventor: Takumi Yamamoto
-
Publication number: 20130027446Abstract: An electro-optical device of the invention includes a first substrate and a second substrate facing each other with an electro-optical medium sandwiched therebetween, a pixel region having a plurality of pixels, and an ion trap section having an electrode formed in a region outside of the pixel region. A trapping voltage applied to the electrode of the ion trap section varies in accordance with a calculated voltage value that is calculated from a driving voltage applied to the electro-optical medium in one or a plurality of the pixels serving as a reference. The trapping voltage is set relatively high when the calculated voltage value belongs to a relatively high voltage range, and the trapping voltage is set relatively low when the calculated voltage value belongs to a relatively low voltage range.Type: ApplicationFiled: July 16, 2012Publication date: January 31, 2013Applicant: Seiko Epson CorporationInventors: Masakazu Nishida, Ayae Sawado
-
Publication number: 20130021394Abstract: A locally dimmed display has a spatial light modulator illuminated by a light source. The spatial light modulator is illuminated with a low resolution version of a desired image. The illumination may comprise a series of lighting elements that vary smoothly from one element to another at the spatial light modulator.Type: ApplicationFiled: September 26, 2012Publication date: January 24, 2013Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventor: Dolby Laboratories Licensing Corporation
-
Publication number: 20130016143Abstract: An object is to suppress crosstalk. A display device includes a pixel portion which includes a first display region, a second display region, and a non-light-emitting region provided between the first display region and the second display region; and a parallax barrier which includes a first light control region, a second light control region, and a light-transmitting region provided between the first light control region and the second light control region. The first light control region overlaps with the first display region, the second light control region overlaps with the second display region, and the center of the width of the light-transmitting region overlaps with the non-light-emitting region.Type: ApplicationFiled: July 10, 2012Publication date: January 17, 2013Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Jun KOYAMA, Hiroyuki MIYAKE, Kouhei TOYOTAKA, Hikaru HARADA, Makoto KANEYASU
-
Publication number: 20120242724Abstract: A transmissive display apparatus includes a transparent display panel, a display unit which projects a display light toward a display area of the transparent display panel, a ratio change unit which is provided to the display area, is configured to be capable of changing a light transmittance, and is configured to be capable of changing a ratio of a light quantity of a rear face reflected light reaching a viewpoint relative to a light quantity of a front face reflected light reaching the viewpoint, and a control unit which alternately switches the ratio change unit between a first state and a second state. The ratio change unit lowers, in the first state, the ratio by reducing the light quantity of the rear face reflected light that reaches the viewpoint in comparison to the second state. The light transmittance increases in the second state in comparison to the first state.Type: ApplicationFiled: June 1, 2012Publication date: September 27, 2012Inventors: Akira KUROZUKA, Shinichi KADOWAKI, Kakuya YAMAMOTO, Kenichi KASAZUMI, Keiji SUGIYAMA
-
Publication number: 20120229532Abstract: A color LED display device without color separation comprises a substrate, a plurality of display units, a power supply unit, and a control unit. Each display unit comprises a driving chip, at least one red-light LED chip, at least one green-light LED chip, at least one blue-light LED chip, and a micro optical device assembly. The micro optical device assembly is disposed above the red-light, green-light and blue-light LED chips. When the control unit controls the display unit to emit light, the red-light, green-light and blue-light LED chips emit red, green and blue lights respectively and simultaneously. The red, green and blue lights pass through the micro optical device assembly, such that the light paths of the red, green and blue lights are changed and the three lights are combined on a two-dimensional plane. Therefore, the color separation phenomenon of the conventional color LED display device is solved.Type: ApplicationFiled: March 2, 2012Publication date: September 13, 2012Applicant: NATIONAL TSING HUA UNIVERSITYInventors: Cheng-Huan Chen, Shu-Hui Chu, Kuang-Lung Huang
-
Publication number: 20120229531Abstract: Disclosed herein is a display including: a reflective image display section having pixels arranged in the display region; and a lighting device adapted to irradiate light to the image display section from diagonally in front, in which the light scattering characteristics in the display region are angle-dependent, and in which the lighting device irradiates light whose intensity distribution is adjusted so that when the display region displaying an image having an equal gray level is viewed from a given viewing position, the image luminance is uniform.Type: ApplicationFiled: February 16, 2012Publication date: September 13, 2012Applicant: SONY CORPORATIONInventors: Tatsuya Yata, Kenji Tanase, Susumu Kimura, Takafumi Suzuki
-
Publication number: 20120218325Abstract: To extend the range of distance (between a display screen and the eye of a viewer) with which the viewer can see 3D images with the naked eye and to reduce power consumption. A parallax barrier in a shutter panel is controlled to be arranged optimally in accordance with the distance between the viewer and a display panel. Specifically, an optimal parallax barrier is formed as appropriate by selectively switching a light-transmitting state and a light-shielding state of a plurality of optical shutter regions and a display element unit of pixels depending on a retention state. The retention state is realized in such a manner that at least one of electrodes between which a liquid crystal layer is sandwiched is connected to a transistor including a semiconductor layer containing an oxide semiconductor and the transistor is turned off.Type: ApplicationFiled: February 9, 2012Publication date: August 30, 2012Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Masaaki HIROKI, Hiroyuki MIYAKE, Yoshiharu HIRAKATA, Jun KOYAMA
-
Publication number: 20120212523Abstract: A display element includes a transmission/diffusion switching layer switched between a diffusion state of diffusing visible light and a transmission state of transmitting visible light by electrical switching, and a transmission/reflection switching layer switched between a reflection state of reflecting visible light and a transmission state of transmitting visible light by electrical switching, and the transmission/diffusion switching layer and the transmission/reflection switching layer overlap each other.Type: ApplicationFiled: February 9, 2012Publication date: August 23, 2012Applicant: SEIKO EPSON CORPORATIONInventor: Taisuke YAMAUCHI
-
Publication number: 20120206513Abstract: The present invention provides a liquid crystal display device including a multiple primary color panel capable of improving the display quality in the vicinity of a monochromatic color, and a control method therefor. The present invention provides a liquid crystal display device that performs display by input thereto of image signals for three colors from outside. The liquid crystal display device includes a liquid crystal display panel and a backlight. A plurality of pixels each including picture elements of four colors or more are formed in a display region of the liquid crystal display panel. Each pixel includes picture elements of three colors, provided with color filters having colors corresponding to the respective colors of the image signals, and at least one picture element of other color(s), provided with a color filter having a color corresponding to a color other than the colors of the image signals.Type: ApplicationFiled: July 23, 2010Publication date: August 16, 2012Applicant: SHARP KABUSHIKI KAISHAInventor: Tetsuya Ueno
-
Patent number: 8243054Abstract: A liquid crystal display (LCD) includes a graphic processor, a number of sensors, an optical signal collecting unit, a property saving unit, a property comparing unit, and a property setting unit. The optical signal collecting unit receives optical analog signals generated by the number of sensors, and converts the received optical analog signals into optical digital signals. The property saving unit saves a number of predetermined display properties and a number of predetermined optical signal ranges. The property comparing unit receives the optical digital signals and compares the optical digital signals with the plurality of predetermined optical signal ranges, and correspondingly selects corresponding predetermined display properties. The property setting unit receives the selected display properties and outputs the selected display properties to the graphic processor to adjust display properties of the LCD.Type: GrantFiled: July 6, 2009Date of Patent: August 14, 2012Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Yang-Yuan Chen, Ming-Chih Hsieh
-
Patent number: 8229251Abstract: The present approach increases bandwidth by performing at least two functions at the pre-processing level. Specifically, under the present approach, program code is structured so that the segmentation and binarization functions/modules (and optionally a blob analysis function/module) are merged into a single module to reduce memory bandwidth. In addition, each image frame is segmented into a plurality of partitions (e.g., vertical strips) to enhance the reusability of the image data in LS already fetched from main memory. Each partition is then processed by a separate one of a plurality of processing engines, thereby increasing the utilization of all processing engines and allowing the processing engines to maintain good bandwidth.Type: GrantFiled: February 8, 2008Date of Patent: July 24, 2012Assignee: International Business Machines CorporationInventors: Munehiro Doi, Moon J. Kim, Yumi Mori, Hangu Yeo
-
Patent number: 8199137Abstract: An optical recording apparatus and a method of optical recording are disclosed in which: a DC voltage of a first polarity is applied, as a reset voltage for initializing a display layer, to one of a plurality of divided electrodes which is selected in a predetermined sequence along a specified direction, and reset light is irradiated onto a photoconductor layer in a region corresponding to the selected divided electrode; and a DC voltage of a second polarity opposite to the first polarity is applied, as an image writing voltage for writing an image in the display layer, to the selected divided electrode, and image light corresponding to input image information is irradiated onto the photoconductor layer in the region corresponding to the selected divided electrode. Also disclosed is an image display apparatus including the optical recording apparatus.Type: GrantFiled: October 10, 2007Date of Patent: June 12, 2012Assignee: Fuji Xerox Co., Ltd.Inventors: Tsutomu Ishii, Minoru Koshimizu, Naoki Hiji, Yasunori Saito, Haruo Harada, Masahiro Sato
-
Publication number: 20120133672Abstract: The present invention provides a method of changing color or transmittance of light on a surface part of an object. The surface part of the object includes a solvent and a plurality of particles dispersed in the solvent. When electric field is applied to the solvent and the plurality of particles, the transmittance of color or light on the surface part of the object is changed due to the change of the inter-particle distances or the positions of the particles, according to the magnitude, direction, application time or application frequency of electric field, wherein the magnitude, direction, application time or application frequency of electric field are changed by associating the input signal by the user of the object or the signal acquired by the object or the signal acquired by the sensing unit provided to the object.Type: ApplicationFiled: June 28, 2011Publication date: May 31, 2012Applicant: NANOBRICK CO., LTD.Inventor: Jae Hyun Joo
-
Publication number: 20120120131Abstract: A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. The screen is illuminated with light from a light source comprising an array of controllable light-emitters. The controllable-emitters and elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provide a high dynamic range.Type: ApplicationFiled: January 25, 2012Publication date: May 17, 2012Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Lorne A. Whitehead, Helge Seetzen, Don Graham, Greg Ward, Wolfgang Stuerzlinger
-
Patent number: 8144074Abstract: A liquid crystal display element includes a G display unit, serving as a first display unit, R and B display units and, serving as second and third display units, that are laminated on the G display unit and have display regions arranged so as to correspond to a display region of the G display unit, and a display control unit that performs a reset process of changing the display region to the same display state on the G display unit and then starts the reset process of the R and B display units.Type: GrantFiled: March 26, 2009Date of Patent: March 27, 2012Assignee: Fujitsu LimitedInventors: Masayuki Nose, Hisashi Yamaguchi, Tsuneo Watanuki, Makoto Fukuda, Toshiaki Yoshihara
-
Publication number: 20120033001Abstract: A display device includes a first display panel facing a second display panel with a liquid crystal layer between them. The first display panel has a first gate line, a second gate line spaced apart from the first gate line, a first and second storage lines both spaced apart from the first gate line, first and second switching elements controlled by a first gate signal applied through the first gate line, a first sub-pixel electrode connected to the first switching element, a second sub-pixel electrode connected to the second switching element, a third switching element controlled by a second gate signal applied through the second gate line, and a coupling electrode connected to the third switching element and having a portion overlapping the second storage line. Different voltages are applied to the first storage line and the second storage line.Type: ApplicationFiled: June 10, 2011Publication date: February 9, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong-Jo KIM, Yoon-Jang KIM, Yoon-Sung UM, Jong-Hee NA, Young-Min CHOI
-
Patent number: 8106930Abstract: Image display techniques for eliminating mura defects, which collects reference data and adjusts the gray levels. The image display systems comprising a plurality of pixels, a memory, and an ASIC. Each of the pixels relates to a mura compensation coefficient set. The mura compensation coefficient sets of the pixels are generated by a coefficient generator. The memory stores the mura compensation coefficient sets of the pixels. The ASIC reads the mura compensation coefficient sets from the memory. With different mura compensation coefficient sets, the ASIC serves as different mura compensation function sets. Each mura compensation function set relates to one of the aforementioned pixels and is used for transforming an original gray level to a mura-eliminated gray level to drive the corresponding pixel.Type: GrantFiled: May 1, 2008Date of Patent: January 31, 2012Assignee: Chimei Innolux CorporationInventors: Shou-Cheng Wang, Du-Zen Peng
-
Publication number: 20120019573Abstract: Aspects of the present invention include systems for reflective digital light processing (DLP). Embodiments include a light source, a plurality of optically reflective switching devices each having an optically reflective layer in contact with a substrate; a circuit means and power source; controller logic; a projection means; and a display means; wherein each of said plurality of devices is a capable of receiving light from said light source and thereafter reflecting said received light in direct response to a reflective state condition of said each device.Type: ApplicationFiled: June 20, 2011Publication date: January 26, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Slavek P. Aksamit, David D. Chudy, Cristian Medina
-
Publication number: 20110285764Abstract: A video display device is provided with a backlight for projecting light onto a display panel composed of plural backlight blocks two-dimensionally arranged, for controlling the intensity of light for each of the backlight blocks by local dimming control. In the video display device, video, such as letterbox video, having a black blank portion and a video portion is displayed so as to nearly align a boundary between the video portion and the blank portion with a boundary between the backlight blocks. Also, reduced display is performed using only a portion of the backlight blocks in both horizontal and vertical directions while nearly aligning the boundary between the video portion and the blank portion with the boundary between the backlight blocks.Type: ApplicationFiled: April 22, 2011Publication date: November 24, 2011Inventors: Katsunobu KIMURA, Nobuo Masuoka
-
Publication number: 20110279494Abstract: A method for adjusting the color point of a lighting unit including semiconductor-based lasers for generating an RGB signal. The method may include supplying at least one component of the RGB signal to a sensor via a filter; and actuating at least one of the semiconductor-based lasers by means of a signal detected by the sensor.Type: ApplicationFiled: November 6, 2009Publication date: November 17, 2011Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNGInventors: Jan Oliver Drumm, Jens Richter, Claus Seibert
-
Patent number: 8049743Abstract: A display apparatus with a brightness control function is provided, in which a camera portion generates a first detection signal in an image mode by capturing an image of an object by an image sensor according to a first control signal and generates a second detection signal in an illumination mode by detecting external illumination by the same image sensor according to a second control signal. The display displays an image signal, and a controller provides the first control signal to the camera portion in image detection mode, and provides the second control signal to the camera portion in illumination detection mode to control brightness of the display based on the second detection signal received from the camera portion. Only part of the pixels of the image sensor can be used in the illumination detection mode so that additional parts are not required to provide automatic illumination control.Type: GrantFiled: January 29, 2008Date of Patent: November 1, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Hwa-Young Kang
-
Publication number: 20110261094Abstract: Optical and electronic means of addressing are combined to flash bit-sliced images rapidly in a sequential manner to achieve enormous reduction in circuit as well as cost of data drivers in display devices. Also, light source i.e. backlight or front light switching scheme is used to reduce power consumption of light source in display devices for both static and dynamic images with high contrast. Bit slice addressing (BSA) preserves colour purity of images at all angles in fast responding liquid crystal displays with simple data drivers. Colour purity of images is also preserved at all angles of view due to a viewing angle characteristic of bit slice addressing that is independent of gray shades.Type: ApplicationFiled: January 21, 2011Publication date: October 27, 2011Applicant: RAMAN RESEARCH INSTITUTEInventor: Temkar N. Ruckmongathan
-
Patent number: 8044966Abstract: Method and apparatus for display image adjustment is described. More particularly, handles associated with polygon vertices of a polygon rendered image are provided as a graphical user interface (GUI). These handles may be selected and moved by a user with a cursor pointing device to adjust a displayed image for keystoning, among other types of distortion. This GUI allows a user to adjust a projected image for position of a projector with respect to imaging surface, as well as for imaging surface contour, where such contour may be at least substantially planar, cylindrical, or spherical and where such contour may comprise multiple imaging surfaces. This advantageously may be done without special optics or special equipment. An original image is used as texture for rendering polygons, where the image is applied to the rendered polygons.Type: GrantFiled: December 29, 2009Date of Patent: October 25, 2011Assignee: NVIDIA CorporationInventors: Michael B. Diamond, Abraham B. de Waal, David R. Morey, Jerome F. Duluk, Jr.
-
Patent number: 8041144Abstract: An apparatus and method for improving visibility of an image. The apparatus includes: a lookup table (LUT) generating module generating an LUT having image data in a high illuminance environment corresponding to image data of an input image set therein so as to increase lightness and chroma of the input image according to external illuminance; an image mapping module mapping the image data of the input image into the image data in the high illuminance environment on the basis of the generated LUT; and a local contrast increasing module increasing local contrast of the mapped image data using a parameter for adjusting the local contrast according to the external illuminance.Type: GrantFiled: October 16, 2007Date of Patent: October 18, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: In-Ji Kim, Hyun-wook Ok, Du-sik Park, Yang-ho Cho
-
Publication number: 20110242150Abstract: A backlight unit of a three-dimensional (3D) display has a plurality of cells and a 3D image is formed by adjusting directions of light emitted from the cells. The backlight unit includes an emission unit that adjusts an emission direction of light from a cell with respect to other cells. The backlight unit divides view areas to provide left-eye and right-eye images, thereby generating a 3D image.Type: ApplicationFiled: March 30, 2011Publication date: October 6, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hoon SONG, Yoon-sun CHOI, Hong-seok LEE, Jung-mok BAE